but it does...

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	* we remove the paritition 0 from ->part[] and put the old
contents of ->part[0] into gendisk itself; indexes are shifted, obviously.
	* ->part is allocated at add_gendisk() time and freed at del_gendisk()
according to value of ->minor_shift; static arrays of hd_struct are gone
from drivers, ditto for manual allocations a-la ide.  As the matter of fact,
none of the drivers know about struct hd_struct now.

	new helpers - get_capacity(gendisk)/set_capacity(gendisk, sectors).
Drivers switched to these; that eliminates most of the accesses to
disk->part[]... in the drivers (and makes code more readable, while
we are at it).  That had caught several bugs when minor had been
used in place of minor>>minor_shift (acsi.c is especially nasty in
that respect; I don't know if it had ever been used with multiple
devices...)

	 ide switched from hwif->gd[i] to hwif->drive[i]->disk - IOW, instead
of array of two pointers to gendisks refered from hwif, we keep these pointers
in relevant drives.  Cleaned up.

	SCSI cdroms got gendisks.

	invalidate_buffers() pulled from cdrom ->reset() into its caller.
At that point only cdrom.c using cdi->dev.  That will play a bit later.

	minor cleanup in cdu31a.c

	mcdx.c cleaned up, uses of cdi->dev eliminated

	 pcd.c cleaned up, uses of cdi->dev eliminated, abuse of macros killed
(it used to have
#define PCD pcd[unit]
#define PI PCD.pi
and expected 'unit' to be local variable in each function that used these
(== almost every function in there)).

	Lindent pcd.c.

	 pcd.c - killed RR and WR macros (replaced with inlines without hidden
arguments; the first step in cleanup, they were monstrous).

	sbpcd.c - d eliminated, ditto for uses of cdi->dev (we set cdi->handle
pointing to structure we neeed).  Cleaned up a bit.

	 sbpcd.[c,h] - uses of D_S[d] replaced with uses of *current_drive.

	sbpcd.c - sigh... It used to have a global variable inventively called
'd'.  Current disk number.  Tons of uses, 99% of them being D_S[d].<blah>.
Added a new variable - current_drive.  Said animal is equal to D_S + d -
it's reassigned at the same place as d.

	 killed passing minors around; we always pass a pointer to structure;
scsi_CDs made static.  That killed uses of cdi->dev in sr.c and friends.

	Global search'n'replace job - 'SCp' (Scsi_CD pointer - I'm not kidding;
and yes, they spell it "Scsi") replaced with 'cd' (sr.c, sr_ioctl.c,
sr_vendor.c).

	sr.c: we set SCp->cdi.name from the very beginning, which allows
to kill passing minors in many cases (we can use "%s...", SCp->cd.name instead
of "sr%d...", minor and that turns out to be the majority of places where
we use minors at all).

	new helper - update_partition(disk, partition_number); does the
right thing wrt devfs and driverfs (un)registration of partition entries.
BLKPG ioctls fixed - now they call that beast rather than calling only
devfs side.  New helper - rescan_partitions(disk, bdev); does all work
with wiping/rereading/etc. and fs/block_dev.c now uses it instead of
check_partition().  The latter became static.

	similar to ->flags and ->driverfs_dev_arr, ->de_arr[] got replaced
with its (single) element + flag.

	Each hd_struct used to have int number; in it.  It's used _only_
in disk->part[0] - disk->part[n].number is never assigned/checked for any
positive n.  Moved from hd_struct to gendisk (disk->part[0].number to
disk->number).

	disk->driverfs_dev_arr is either NULL or consists of exactly one
element.  Same change as above (struct device ** -> struct device *); old
"is the pointer to array itself NULL or not?" replaced with a flag (in
disk->flags).

	Seeing that now disk->flags[] always consists of one element, we
replace char *flags with int flags, remove the junk from places that used
to allocate these "arrays" and do obvious updates of the code
(s/->flags[0]/->flags/).

	call of driverfs_remove_partitions() pulled into del_gendisk();
function isn't exported anymore.  Both it and driverfs_create_partitions()
cleaned up.

	driverfs_remove_partitions(), devfs_register_partitions(),
driverfs_create_partitions(), devfs_register_partition(), devfs_register_disc(),
had lost 'minor' argument - it's always disk->first_minor these days.
disk_name() takes partition number instead of minor now.  Callers of
wipe_partitions() in fs/block_dev.c expanded.  Remaining caller passes
gendisk instead of kdev_t now.

	Since ->nr_real is always 1 now, we can remove that field completely.
Removed the last remnants of switch in disk_name() (it could be killed
a long time ago, I just forgot to remove the last two cases when md and i2o
got converted).  Collapsed several instances of
disk->part[minor - disk->first_minor] - in cases when we know that we deal
with disk->part[0].

	wipe_partitions() and driverfs_register_partitions(..., 1) (i.e.
unregistering them) pulled into del_gendisk() and removed from callers.
grok_partitions() merged with register_disk().  devfs_register_partitions(),
grok_partitions() and wipe_partitions() not exported anymore.

Patch set from Jay Estabrook:

 - include/asm-alpha/dma.h:
	Add MAX_DMA_ADDR for SABLE and ALCOR

 - include/asm-alpha/floppy.h:
	enable the full CROSS_64KB macro for all platforms

 - include/asm-alpha/core_t2.h:
	fix HAE usage

 - arch/alpha/kernel/pci.c:
	fiddle with quirk_cypress

 - arch/alpha/kernel/traps.c:
	prevent opDEC_check() from multiple calls (EV4 SMP SABLEs)

 - arch/alpha/kernel/proto.h:
	make t2_pci_tbi() real

 - arch/alpha/kernel/time.c:
	shorten timeout delay

 - arch/alpha/kernel/sys_alcor.c:
	use ALCOR_MAX_DMA_ADDR because of the 1GB limit on ISA devices

 - arch/alpha/kernel/core_t2.c:
	add S/G support and allow direct-map to handle 2GB of memory

 - arch/alpha/kernel/core_tsunami.c:
	rework alignment requirements for ISA DMA, esp. for ACER platforms

 - arch/alpha/kernel/sys_sable.c:
	fix MAX_DMA_ADDR for the 1GB limitation

 - arch/alpha/kernel/pci_impl.h:
	add T2_DEFAULT_MEM_BASE to help avoid HAE use

 - arch/alpha/kernel/pci_iommu.c:
	fix ISA_DMA_MASK calculation, and force ISA alignment to 64KB

 - add another argument to do_fork();
 - assorted compile fixes.

Tested on CIA (sparse config space) and Irongate (dense config space);
other platforms should work as they are similar to these two.

Access config space directly on rx164.

Here are the changes I have

  - Fix some bugs I introduced in zap_thread
  - Improve the check for traced children in sys_wait4
  - Fix parent links when using CLONE_PTRACE

My thanks to OGAWA Hirofumi for pointing out the first bit.

The only other issue I know of is something else Hirofumi pointed out
earlier; there are problems when a tracing process dies unexpectedly.  I'll
come back to that later.

I've done the attached patch to collect & clean up all the things that
happened since yesterday.

It is nice that blkdev_ioctl calls blk_ioctl itself, but unfortunately
it does that only if driver's ioctl returns -EINVAL - and IDE returns
-EIO :-(

Patch below is tested for disks - I do not have IDE floppy nor IDE tape.

of something arch-dependent and usually less. 

We may want to do value limiting in generic_fillattr() if people
end up caring.

This is the pid-max patch, the one i sent for 2.5.31 was botched.  I
have removed the 'once' debugging stupidity - now PIDs start at 0 again.
Also, for an unknown reason the previous patch missed the hunk that had
the declaration of 'DEFAULT_PID_MAX' which made it not compile ...

This contains Daniel's suggested fix that allows a parent to
PTRACE_ATTACH to a child it forked.  That fixes the incorrect BUG_ON()
assert that Ogawa's patch was intended to fix, and we thus undo Ogawa's
patch.

I've tested various ptrace uses and they appear to work just fine.

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We want do so on all architectures for consistency, and i386 will need
the preprocessing soon anyway.

My previous patch added procs i2c_fill_inode and i2c_dir_fill_inode that
Al Viro deemed unnecessary.  i2c developers are in contact with Al to
get the latest scoop.  Meantime lets reverse the change before he flies
off at me about procfs abuse.